Re: A problem about extending lua

[Matt Campbell <mattc@...>]

Hello Chen:

What operating system are you running on, and what is the definition of 
LUAELALIB_API?  Also I'm guessing you're building your extension as a 
shared library or DLL; if so, what are you calling that library?  I'm 
not sure what's causing memory corruption, but I'd rewrite the code you 
provided as follows:

static const luaL_Reg elalualib[] = {
 /* add any global functions here */
 {NULL, NULL}
};

LUAELALIB_API int luaopen_elalua(lua_State *L) {
 luaL_register(L, "elalua", elalualib);
 /* The elalua table is now on the stack; add any manipulation of that 
table here. */
 return 1;
}

On Windows, if you're building your extension as a DLL, LUAELALIB_API 
should be defined as __declspec(dllexport).  Also, if you're using a Lua 
5.1 DLL (e.g. lua51.dll), you should define LUA_BUILD_AS_DLL when 
building your extension.  Finally, on all platforms, make sure you build 
your extension with the same luaconf.h that was used to build Lua.

I hope these suggestions help.  Of course, it would also be a good idea 
to buy the second edition of PIL so you can learn to make the best use 
of Lua 5.1's new features.

--
Matt Campbell
Lead Programmer
Serotek Corporation
www.freedombox.info
"The Accessibility Anywhere People"